Finding the Fourth Proportional to 354,554.20, 531,831.30 and 242,579.80
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Solution
The fourth proportional to 354,554.20, 531,831.30 and 242,579.80 is: 363,869.70
Step by Step Solution
- Step 1: Write the proportion equation
354,554.20 : 531,831.30 = 242,579.80 : x - Step 2: Convert to fraction form
354,554.20/531,831.30 = 242,579.80/x - Step 3: Cross multiply
354,554.20x = 531,831.30 × 242,579.80 - Step 4: Simplify right side
354,554.20x = 129,011,530,387.74 - Step 5: Solve for x
x = 129,011,530,387.74/354,554.20 - Step 6: Final answer
x = 363,869.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.